Machine for straining or filtering fluids



(No Model.) 4 J. H. GALE 8: J. P. AVERY.

MAGHINE FOR STRAINING 0R PILTERING FLUIDS. No. 246,491; Patented Aug. 30,1881.

N. PETERS. Phowuthw p cr. wnsmngim D. c.

UNiTED STATES PATENT G FIC E.

JOHN H. GALE AND JOHN P. AVERY, OF NORWICH, CONNECTICUT.

MACHINE FOR STRAINING OR FILTERING FLUIDS.

SPECIFICATION forming part of Letters Patent No. 246,491, dated August 30, 1881.

Application filed June 22, 1881.

To all whom 'it may concern:

Be it known that we, JOHN H. GALE and JOHN P. AVERY, citizens of the United States,

residing at Norwich, in the county ofNewLon don and State of Connecticut, have invented a new and useful Improvement in Machines for straining or Filtering Fluids, of which the following is a specification.

The object of ourinvention is to strain fluids more perfectly and with less expenditure of labor, time, and money than is possible by existing methods. The machines invented are especially designed for the straining of sugar and molasses or oil. We attain this object by the mechanism illustrated in the accompanying drawings, in which Figure l is a longitudinal section of the whole device. Fig. 2 is a transverse section on line a; 00. Fig. 3 is a sectional view, the section being made on line yy, and is viewed from above.

The unstrained fluid is conducted from reservoir X by pipe 0 into the receiving-cylinder A. This cylinder is provided with an inner wall, A, between which and the outer wall, A, is a steam or hot-air chamber. B, for the purpose of keeping the fluid warm. The steam or hot air is admitted to chamber B in any ordinary manner. (Not shown.)

C is a stop-cock for the escape of steam or water.

D is a piston, fitting closely within the inner wall of cylinder A, and operated from below by means of a screw, D, passing through the bottom plate of cylinder A. The cylinder is rigidly attached to standards E E, which, in turn, may be secured to the floor. The screw D is provided at its lower end with a wheel or crank, (1.

Near the top ofcylinder A, and resting upon the top of the inner wall, is a coarse strainer, F, consisting of a perforated metallic plate, ora metallic grating, which is retained in position by set-screws f f. Additional strainers of different material and degrees of fineness may be used over and in connection with strainer F. The fluid, after becoming warmed in cylinder A, is forced by the piston through (No model.)

strainer F, then through pipe G into the re volving filter H, which is contained in case K. The revolving filter H has solid end pieces, h it, connected by strong parallel bars, around which bars and filter a wirecloth strainer, 7c, is attached. An additional finer strainer of cloth or wire-gauze, 7c, is attached outside of and around the wire cloth strainer. More than two strainers may be used, if necessary. For the purposeo'f protecting said wire cloth and gauze strainers and holding them in place upon the revolving filter-frame a series of me tallic spiders, consisting of bars at right angles to each other, are applied, one to each of the flat sides of the revolving filter-frame aforesaid, H, over the said strainers, and fastened to the bars of said revolving filter-frame H by screws.

A solid trunnion, M, rigidly attached to one end of the revolving filter. passes through the the case and through bearing-plates mm. The outer end of the trunnion is provided with a pulley, P, for communicating motion. The other end of the revolving filter is supported by a hollow trunnion or journal, It, also resting in bearing-plates m m. Pipe Gr passes through this trunnion and delivers the warmed fluid int0 the revolving filter. The outer end of the hollow journal is provided with a rightangled shoulder or projection, r, which acts, in connection with a shoulder, g, upon the pipe, and pulleyP at the other side of the case, to prevent endwise motion of the revolving cylinder. The strained fluid passes through an opening in the bottom of the case into areceptacle beneath.

Having fully described our invention, what we desire to claim and secure by Letters Patent, is-

1. In a machine for filtering fluids, the combination of cylinder A, hot-air chamber 15, strainer F above said chamber, and piston D, operated from below, substantially as and for the purposes set forth.

2. Strainer F, cylinder A, having walls A A, in combination with piston D, screw D, and pipes to and G.

3. The revolving filter H, having end pieces, h, and connecting-bars, to which are attached strainer k and metallic spiders L L, snbst-anbination of strainer F and revolving filter H tially as described. with cylinder A, piston D, and pipe G.

4. The case K, having bearing-plates m m, JOHN H. GALE. in combination with revolving filter H, trun- JOHN P. AVERY. 5 nions M and R 1', and pipe G, having shoul- Witnesses:

der 9. CALISLI DAVIS,

5. In a device for straining fluids, the com- GARDINER GREENE, J r. 

